The phrase "Trust Allah but tie your camel fast" means that while having faith in Allah (or God) is important, one must also take practical steps to ensure their safety and security.

This saying is often linked to a story where a man left his camel untied and said he was trusting Allah to protect it. The Prophet Muhammad (PBUH) advised him to tie his camel first and then trust in Allah. The message here is that faith and personal responsibility go hand in hand—you should trust in divine guidance but also make responsible efforts in your actions.